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Method for dyeing and anti-crease finishing of silk based coupling reaction

A coupling reaction, anti-wrinkle finishing technology, applied in dyeing method, fiber treatment, fibers affecting crease behavior, etc., can solve the problems of low color fastness, high energy consumption, fiber damage, etc., and achieve good color fastness, production Low energy consumption and low fiber damage

Active Publication Date: 2018-11-16
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for anti-wrinkle finishing of real silk based on coupling reaction, aiming to carry out low-temperature anti-wrinkle finishing through coupling reaction, improve the wrinkle recovery of fabrics, and achieve the effect of low-temperature dyeing at the same time. Solve the problems of high energy consumption, low color fastness and easy fiber damage in silk dyeing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Silk electric spinning dyeing and anti-wrinkle finishing;

[0043] (1) Diazotization of aromatic diamine compounds: Dissolve 7.5g / L 4,4'-diaminodiphenylamine in 5g / L hydrochloric acid, add 5g / L sodium nitrite to carry out 4,4'-diaminodiphenylamine Nitriding, treated at 0°C for 30 minutes to prepare diazonium salt solution; after the reaction, use starch-potassium iodide test paper to detect nitrous acid, and remove excess nitrous acid with urea;

[0044] (2) Silk fabric padding lye: the grammage is 36g / m 2 Padding caustic soda solution for pure silk electric spinning to ionize the phenolic hydroxyl groups in the fiber macromolecules; treatment process prescription and conditions: caustic soda 0.05g / L, excess rate 100%, padding temperature 25°C, and bake at 50°C after padding Dry;

[0045] (3) Coupling and coloring of silk fabrics: adjust step (1) diazonium salt solution to pH 7.5, immerse the silk power spinning treated in step (2) in diazonium salt solution, and perfor...

Embodiment 2

[0052] Silk crepe chine dyeing and anti-wrinkle finishing;

[0053] (1) Diazotization of aromatic diamine compounds: Dissolve 12.5g / L 4,4'-diaminobenzoylanilide in 10g / L hydrochloric acid, add 7.5g / L sodium nitrite for 4,4'-diazotization Diazotization of aminobenzoyl anilide, after treatment at 0°C for 40 minutes, prepare diazonium salt solution; after the reaction, use starch-potassium iodide test paper to detect nitrous acid, and remove excess nitrous acid with urea;

[0054] (2) Silk fabric padding lye: add 68g / m 2 The pure silk crepe de chine is padded with caustic soda solution to ionize the phenolic hydroxyl groups in the fiber macromolecules; treatment process prescription and conditions: caustic soda 0.12g / L, excess rate of 100%, padding temperature of 20°C, and drying at 40°C after padding Dry;

[0055] (3) Coupling and coloring of real silk fabrics: adjust the step (1) diazonium salt solution to pH 7.0, and immerse the real silk electric spinning treated in step (2...

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PUM

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Abstract

The invention discloses a method for dyeing and anti-crease finishing of silk based on a coupling reaction, and belongs to the technical field of textile chemistry. In the invention, an aromatic diamine compound is diazotized, and the diazotized aromatic diamine compound and a phenolic hydroxyl group-containing tyrosine side group in silk fiber macromolecules undergo a coupling reaction to make the silk fabric dyed and improve the anti-crease recovery performance to achieve the anti-crease finishing. The method concretely includes the following steps: (1) diazotization of the aromatic diaminecompound; (2) impregnation of the silk fabric in an alkali lye; (3) coupling coloration of the silk fabric; and (4) water washing and drying post-treatment. Compared with methods for anti-crease finishing of the silk fabric resin by silk dyeing using high temperature boiling dyeing and a high temperature baking process, the method disclosed in the invention has the advantages of less damages to the silk fiber, short process flow, and good dyeing fastness of the fabric.

Description

technical field [0001] The invention relates to a method for dyeing and anti-wrinkle finishing of real silk based on a coupling reaction, belonging to the technical field of textile chemistry. Background technique [0002] Mulberry silk is composed of sericin and silk fibroin. During the degumming process, sericin is dissolved by alkaline agent or hydrolyzed by protease, while silk fibroin with high chemical stability is effectively retained and can be processed into different silk fabric varieties. The silk fabric is soft to the touch, elegant in luster, excellent in absorption and comfortable to wear. With consumers' requirements for novelty silk fabrics, silk fabrics are no longer limited to the boundaries of traditional summer. They are not only used as lightweight summer clothing fabrics, but also for autumn and winter suits, shawls, high-end windbreakers and interior decorations. [0003] Due to the high content of polar groups such as amino groups and hydroxyl groups...

Claims

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Application Information

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IPC IPC(8): D06P1/12D06P3/12D06M13/322D06M101/10
CPCD06M13/322D06P1/127D06P3/12D06M2200/20D06M2101/10
Inventor 王平魏叶余圆圆王强范雪荣
Owner JIANGNAN UNIV
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